The main route of a new reaction of (dichloromethyl)arenes with S-methyl diethylthiophosphinate is the attack of the thiol sulfur atom (P–SMe) on the methylene carbon atom. A new method for synthesizing dimethyl dithioacetals of arenecarbaldehydes without using highly toxic methanethiol was developed. The suggested approach involves di(dechloromethylthioylation) of the dichloromethyl group of (dichloromethyl)arenes with S-methyl diethylthiophosphinate at a reagent ratio of 1: 2.

中文翻译：

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S-甲基二乙基硫代次膦酸盐在取代的亚苄基氯化物的单和二（脱氯甲硫基化）中

（二氯甲基）芳烃与 S-甲基二乙基硫代次膦酸盐的新反应的主要途径是硫醇硫原子（P-SMe）对亚甲基碳原子的攻击。开发了一种不使用剧毒甲硫醇合成芳烃甲醛二甲基二硫缩醛的新方法。建议的方法包括（二氯甲基）芳烃的二氯甲基基团与 S-甲基二乙基硫代次膦酸盐以 1:2 的试剂比例进行二（脱氯甲基硫代化）。